Heat some olive oil over medium-low heat. Add onions and sauteuntil soft but not golden. Add tomatoes. Season with salt, pepper,and herbs (basil, oregano, thyme, you can use italian seasoning).Add a bit of sugar to take off the acidity and garlic. Let it simmerfor 5 to 10 minutes, covered, then blend it thouroughly, and letit simmer for at least 30 more minutes.